This is because by default, EA shares the same body texture for teens through elders.
Elders will instead use my adult body textures. The elder bodies are not included in the default versions.
I am sharing this in a variety of resolutions so you can pick the quality level appropriate for your game - the non-defaults will not conflict, and the ramps are labeled with the quality level so you can easily compare. It’s still not perfect, but if I don’t share this now, I never will. This is a brand new skin, but should suit sims made with Starfruit, as I try to keep my face textures neutral enough to work with a wide variety of features. Everything, from the ears to the fingernails and genitals, has been painted and tweaked to the best of my ability. PRIMER: HD Skin for All Ages (Baby-Elder)
